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[VarDumper] Display BOM characters #47519

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lyrixx opened this issue Sep 8, 2022 · 3 comments · Fixed by #48748
Closed

[VarDumper] Display BOM characters #47519

lyrixx opened this issue Sep 8, 2022 · 3 comments · Fixed by #48748
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@lyrixx
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lyrixx commented Sep 8, 2022

Hello,

We had a very strange issue, and it was a bit hard to debug (Mind the !==) :

image

TL;DR: there was a BOM (U+FEFF) character in front of the string.

I would be very cool to have the vardumper displaying such characters.
I made a reproducer if it can help:

https://gist.github.com/lyrixx/8fe4a205864855bd23f1c0ec44b6d72d

image

BTW, my IDE warns me about that:
image
@damienalexandre
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All invisible Unicode characters could shown like that. There is already a image to display newline, we could have the same thing.

See this reference: https://invisible-characters.com/

@nicolas-grekas
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That'd make sense to me, we should display them as we do for \n, as eg \u{feff}

@lyrixx
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lyrixx commented Sep 8, 2022

I think it's a good idea, yes 💛

@alamirault alamirault mentioned this issue Dec 21, 2022
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[VarDumper] Display invisible characters alamirault/symfony
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@damienalexandre @nicolas-grekas @lyrixx @carsonbot